4-Digit Display

A simple 4-digit LED display module with a 2-wire serial interface (CLK and DIO), making it easy to add numeric readouts to micro:bit, Arduino, and other microcontroller projects. The module operates at 3.3V or 5V and requires just four connections: CLK, DIO, VCC, and GND.

Key Features

• 4-Digit LED Display – Clear numeric readout for counters, timers, and sensor values
• 2-Wire Serial Interface – CLK and DIO pins for simple communication
• 3.3V / 5V Compatible – Works with micro:bit, Arduino, and other common boards
• Easy Wiring – Only 4 pins: CLK, DIO, VCC, and GND

Pinout

• CLK – Clock input
• DIO – Serial data input/output
• VCC – 3.3V or 5V power supply
• GND – Ground

Ideal For

• micro:bit projects and classroom activities
• Counters, timers, and scoreboards
• Temperature and sensor readouts
• Arduino and general microcontroller projects

Package Contents

• 1× 4-Digit LED Display Module